130312231021 has 8 divisors (see below), whose sum is σ = 148952222720. Its totient is φ = 111678229008.

The previous prime is 130312231013. The next prime is 130312231031. The reversal of 130312231021 is 120132213031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130312231021 - 2³ = 130312231013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 130312231021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130312231031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1450701 + ... + 1537906.

It is an arithmetic number, because the mean of its divisors is an integer number (18619027840).

Almost surely, 2^130312231021 is an apocalyptic number.

It is an amenable number.

130312231021 is a deficient number, since it is larger than the sum of its proper divisors (18639991699).

130312231021 is an equidigital number, since it uses as much as digits as its factorization.

130312231021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2994843.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 130312231021 its reverse (120132213031), we get a palindrome (250444444052).

The spelling of 130312231021 in words is "one hundred thirty billion, three hundred twelve million, two hundred thirty-one thousand, twenty-one".